Project packing failed struct error

Hello,

I need some help with my project, please.
I’ve trying to pack my project, and for some reason, it fails. I’m getting a lot of red lines, errors all of them referring to structs, but none of them tells me specifically which one…

ProcessResult.StdOut: LogInit: Display: LogProperty: Error: UStructProperty::Serialize Loading: Property ‘StructProperty /Game/GameLogicBP/Editing/Project_Stats_windget_Video.Project_Stats_windget_Video_C:Project ref’. Unknown structure.
ProcessResult.StdOut: LogInit: Display: LogProperty: Error: UStructProperty::Serialize Loading: Property ‘StructProperty /Game/GameLogicBP/Editing/Project_Stats_windget_Photo.Project_Stats_windget_Photo_C:Project ref’. Unknown structure.

Another issue that I’ve noticed is the fact that if I try to edit any structs, the editor crashes.

This widget uses multiple structs and on compiling the widget it’s error-free… Also, running the game in PIE or Stand Alone, the game runs fine…
What I have done so far: Deleted Saved and intermediate folders contents, rebuild the game in VS17.

Full Log HERE

Please help me, I was meant to release this update this weekend. Also, since the last successful packing, I haven't done anything to change any structs...